ol-ext/src/control/GeoBookmark.css

A set of cool extensions for OpenLayers (ol) in node modules structure

.ol-control.ol-bookmark {
  top: 0.5em;
  left: 3em;
  background-color: rgba(255,255,255,.5);
}
.ol-control.ol-bookmark button {
  position: relative;
}
.ol-control.ol-bookmark > button::before {
  content: "";
  position: absolute;
  border-width: 10px 5px 4px;
  border-style: solid;
  border-color: currentColor;
  border-bottom-color: transparent;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  height: 0;
}


.ol-control.ol-bookmark > div {
  display: block;
  min-width: 5em;
}
.ol-control.ol-bookmark.ol-collapsed > div {
  display: none;
}
.ol-control.ol-bookmark input {
  font-size: 0.9em;
  margin: 0 0.5em 0.5em;
  padding: 0 0.5em;
}
.ol-control.ol-bookmark ul {
  margin: 0 0 0.5em;
  padding: 0;
  list-style: none;
  min-width: 10em;
}
.ol-control.ol-bookmark li {
  color: rgba(0,60,136,0.8);
  font-size: 0.9em;
  padding: 0 0.2em 0 0.5em;
  cursor: default;
  clear:both;
}

.ol-control.ol-bookmark li:hover {
  background-color: rgba(0,60,136,.5);
  color: #fff;
}

.ol-control.ol-bookmark > div button {
  width: 1em;
  height: 0.8em;
  float: right;
  background-color: transparent;
  cursor: pointer;
  border-radius: 0;
}
.ol-control.ol-bookmark > div button:before {
  content: "\2A2F";
  color: #936;
  font-size: 1.2em;
  line-height: 1em;
  border-radius: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.ol-bookmark ul li button,
.ol-bookmark input {
  display: none;
}
.ol-bookmark.ol-editable ul li button,
.ol-bookmark.ol-editable input {
  display: block;
}